438726798 has 12 divisors (see below), whose sum is σ = 950574768. Its totient is φ = 146242260.

The previous prime is 438726793. The next prime is 438726839. The reversal of 438726798 is 897627834.

It is a super-3 number, since 3×438726798³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438726791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12186838 + ... + 12186873.

It is an arithmetic number, because the mean of its divisors is an integer number (79214564).

Almost surely, 2^438726798 is an apocalyptic number.

438726798 is an abundant number, since it is smaller than the sum of its proper divisors (511847970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438726798 is a wasteful number, since it uses less digits than its factorization.

438726798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24373719 (or 24373716 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 438726798 is about 20945.8062150875. The cubic root of 438726798 is about 759.8561581421.

The spelling of 438726798 in words is "four hundred thirty-eight million, seven hundred twenty-six thousand, seven hundred ninety-eight".